fix: Make all tests pass!

Delete TokenTransfer.sol
Make slither happy

Bugfixes:
- Executors
  - Ekubo:
    - Fix the POOL_DATA_OFFSET value and remove sender from callback data
    - Use SafeERC20
  - Maverick and Univ2: Use safeTransfer and not safeTransferFrom
  - Univ3: update expected data length
  - Univ4: update the selectors (the signature changed)
- Router:
  - For split swap we don't need to pass the tokenInReceiver, it should always be the router address
  - For single and sequential: change order of the parameters (to be before the permit2 specific objects)
- Encoders:
  - Update selector signatures
  - For split swap pass the transfer_from (we might not need to if the token in is ETH)

Took 2 hours 51 minutes

foundry/src/executors/UniswapV2Executor.sol

@@ -60,12 +60,8 @@ contract UniswapV2Executor is IExecutor {
         calculatedAmount = _getAmountOut(target, givenAmount, zeroForOne);
 
         if (transferNeeded) {
-            if (address(tokenIn) == address(0)) {
-                payable(target).transfer(givenAmount);
-            } else {
-                // slither-disable-next-line arbitrary-send-erc20
-                tokenIn.safeTransferFrom(msg.sender, target, givenAmount);
-            }
+            // slither-disable-next-line arbitrary-send-erc20
+            tokenIn.safeTransfer(target, givenAmount);
         }
 
         IUniswapV2Pair pool = IUniswapV2Pair(target);